Finding the Fourth Proportional to 196,557.94, 294,393.89 and 137,656.56

Step by Step Solution

1. Step 1: Write the proportion equation
   196,557.94 : 294,393.89 = 137,656.56 : x
2. Step 2: Convert to fraction form
   196,557.94/294,393.89 = 137,656.56/x
3. Step 3: Cross multiply
   196,557.94x = 294,393.89 × 137,656.56
4. Step 4: Simplify right side
   196,557.94x = 40,525,251,630.54
5. Step 5: Solve for x
   x = 40,525,251,630.54/196,557.94
6. Step 6: Final answer
   x = 206,174.58